ABB AV1221000 NSNBC01 Industrial Safety Relay

ABB AV1221000 is a pneumatic valve positioner (Mfr # AV1221000) with a 150 psi rating, as listed by ABB distributors and catalogs. In distributor listings the unit is described as a Pneumatic Valve Positioner 150 PSI AV1221000, confirming its role in controlling a pneumatic valve actuator by modulating air pressure in response to a control signal. The AV1221000 designation identifies the model within ABB's AV series of positioners, a family used to improve valve positioning in automated processes. Verified listings ensure the part number AV1221000 corresponds to this positioner, aiding correct ordering and compatibility with ABB automation hardware. Beyond the 150 psi rating, mounting arrangements, electrical interfaces, and any required certifications depend on the specific supplier and application; consult the supplier datasheet for exact mounting dimensions and connection details. This model is discussed within ABB’s broader catalog of safety and control components, where positioners like AV1221000 are employed to achieve accurate valve movement in pneumatic control loops.